%I #8 Dec 27 2017 03:10:54
%S 0,0,1,16,4913,13481272,272624565213,43591165915025672,
%T 54987285852263666792584,546490452644177272846400450304,
%U 42801199124555963417196629935933733033,26416976791435052534725445524174519235494961992
%N Number of edge covers in the n-triangular honeycomb acute knight graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EdgeCover.html">Edge Cover</a>
%Y Cf. A287230, A289906.
%K nonn
%O 1,4
%A _Eric W. Weisstein_, Jul 14 2017
%E a(10)-a(12) from _Andrew Howroyd_, Dec 26 2017